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The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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ORAU, ANS, others to host workshops on nuclear academic programs
Oak Ridge Associated Universities (ORAU), in partnership with the American Nuclear Society, the Nuclear Energy Institute, and the Institute for Nuclear Power Operators, has announced it will host an online workshop called “Shaping the Future of Nuclear Academic Programs.” The 90-minute program is designed for university department heads and faculty interested in enhancing nuclear science and technology programs through best practices.
A. Lauer, W. Fröhling
Nuclear Science and Engineering | Volume 57 | Number 1 | May 1975 | Pages 28-38
Technical Paper | doi.org/10.13182/NSE75-A40340
Articles are hosted by Taylor and Francis Online.
Extending the previously presented steady-state characteristics of the pebble-bed high-temperature reactor with the new “once through then out” (OTTO) fuel concept, we have investigated its load-following properties, i.e., the slow core transients in connection with adjustments of the reactor output to meet the power demand. We consider neutronic and thermodynamic characteristics of this strongly asymmetric core design during the related xenon transients where further novel features of this reactor type emerge. Our two-dimensional analysis considers the extremely space-dependent core conditions of a medium sized OTTO pebble-bed reactor during the transient, where the inhomogeneous xenon redistribution and a rod control acting only in the top reflector compete with each other to influence the axial power-density profile. The resulting variations in the maximum fuel temperatures are remarkably small, which reemphasizes the favorable thermodynamic properties of this new reactor concept.